
Fittings For Piping - Gate Valves Of Cast Iron With Non-rising Stem, Sealing Surfaces And Wedge Of Cu-alloy Resistant To Sea Water - Nominal Gauge Pressure 10,6,4 And 2,5 Kgf/square Cm
出版:Standardiserings-Kommissionen I Sverige

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Fittings For Piping - Gate Valves Of Cast Iron With Non-rising Stem, Sealing Surfaces And Wedge Of Cu-alloy Resistant To Sea Water - Nominal Gauge Pressure 10,6,4 And 2,5 Kgf/square Cm
出版:Standardiserings-Kommissionen I Sverige
專家解讀視頻